20187964719

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{57515569}}^1$

素因数の和:57515591

約数の個数: 16

約数和(自身を含む): 32208719200

約数和(自身を除く): 12020754481

約数列:

[1, 3, 9, 13, 27, 39, 117, 351, 57515569, 172546707, 517640121, 747702397, 1552920363, 2243107191, 6729321573, 20187964719]

約数ペア:

[(1, 20187964719), (3, 6729321573), (9, 2243107191), (13, 1552920363), (27, 747702397), (39, 517640121), (117, 172546707), (351, 57515569)]